Tiny Crossword is a daily game played publicly on Twitter. The @TinyCrossword account procedurally generates a 3-word puzzle at noon PST. Players (anyone on Twitter) can @-reply with their proposed solution. After two hours, the bot posts the solution and credits the first player to have solved it.
The puzzle elements are drawn from the Simple English Wikipedia API. New puzzles are procedurally generated using up-to-date terms and concepts, with no additional designer input.
Tiny Crossword is designed to be hosted on Heroku, and uses the following open source libraries: